Dust arrester bag



Aug. 13; 1935. R, RUEMEUN 2,010,898

DUST ARRESTER' BAG Filed June 3, 1932 40 curing means either by shaping the upper end of h collar is 1mg Patented Ati .13,193s 4 2 til",898

UNITED STATES PATENT OFFICE 2,010,898 DUST Amms'rizn BAG Richard Ruemelin, Milwaukee, Wis. Application June 3, 1932, Serial No. 615,147 Claims. (Cl. 183-51) This invention relates to dust arrester bags arrester, showing a series of tubular textile ba made of tubular textile material, each tube formheld in operative position. ing the dust arrester bag and I have developed Figure 2 is an enlarged detail of one meansa means of making these tubes so that they may of holding the upper end of the tubular textile 5 be held in a manner to maintain them virtually bags.

wide open from end to end in a tubular for- Figure 3 is'a side view of one of the tubular I mation. bags, showing the same connected at the bottom Heretofore dust arrester bars of a tubular nato the collar of the dust collecting box and the ture made of textile material have been employed upper end held by my improved tube expanding in dust arresters, however, the supporting of one and hook supporting means, while the middle 10 end of the same in the dust arrester has been portion is broken awa of a different character and one which would Figure 4' illustrates another form of expanding tend to close or flatten the side walls against each and fastening the upper end of the bag illusother at the upper supporting end, which fiattrated in section. t

tening condition would taper down to almost the Figure 5 illustrates still another form, part of very attached lower end which usually is held which is shown in section. around a collar to hold these tubular textile bags Figure 6 illustrates a disc like clamping memo firmly C a p t ame o the colla My her with a spring-connected to the disc and hook V Structure for Supporting e e du t ar est r bags for supporting the upper end of the tubular textherefore performs an important means of holdtil dust arrester bag.

ing the same. In practice usually a multiplicity Figure '7 illustrates still another means of of these dust arrester bags are extended vertically holding the upper end of the bag expanded and from the dust collecting box at the bottom connected t h k of the dust collector and t pp r end Figure 8 illustrates a ring-like band inside the must be held by means which pp the upper end of the dust arrester tube and the top dust ellester tubular begs extending v t al y end extended and formed into a loop through parallel to each other and held so as not to tear which the supporting hook engages. the body of the bags, but to hold them with their Fi ur 9 is a perspective view of the structure outer surface out full so that a greater dust illustrated in Figure 8, only a portion of the bag arresting surface is provided within the tubes being h n, 39 and so that any dust collected therein may fall y d st arrester bags A are formed of textile back o the dust collecting bOX a the bottom material or cloth, particularly woven for the and t0 which the dust arrester bags tlilbeS are use in dust arresters and of a seamless tubular connected. nature. The bags A are adapted to be connected A feature resides in providing a means of at the bottom to a dust collecting box it by means 35 clamping the upper end of the dust arrester tubuof the clamping rings i l, more clearly illustrated lar bags by a ring-like collar means which holds in Figure 3. A collar l2 proiects upwardly from the upper end of the tube expanded to the full the box l0 so as to provide a firm tubular atdlameter of the tubular bag and providing a sea n means for the lo end l3 0f h b e enough to hold the lower end 4 the dust arrester tubular bag itself beyond the of the bag expanded Virtually to its fun ameter.

x nrin rie osuortin stazsttchiftigzdmt The 18 W member to hold the upper end of the bag exend of the bag A i t to vlrtualy Its I diameter. I accomplish this in a manner to hold panded remforged S by placing a disc the bag A securely and at the same time prevent her to which rmg'hke member clamps the injuring the body of the bag so that any holes upper end of the and then engaging the will permit the leakage of dust. In Figures 2 disc by the hook wmch holds'the upper end Of and 3 the upper end ll of the bag is constructed the with an expanding ring or hoop l5 which is held The details and features will be fully and more between t stitching 16. The rings or hoops 15 clearly deflnedmay be held by the band I! which is stitched by In the drawing'forming a part of this spe iflthe stitches IS on the outside of the bag, thereby at o confining the ring or hoop IS in a manner to act a Figure 1 is a side view of a portion of a dust as an expander to hold the upper and H or the the tubular in the strip in which a hook suspending means 24 engages so as to attach the upper end of the bag A in the dust arrester, as illustrated in Figure 1.

. The upper end of the bag A may be expanded by.

the internal disc 25 as illustrated in Figure 6, which is provided with an annular groove 26. In this construction the upper end M of the bag is held around the disc 25 by an outer clamping ring 2 7 which forces the material of the upper edge of the bag into the groove 26 and clamps it tightly therein. The hook suspending means 24 is adapted to extend axially through the disc 25 and a coil spring 28 extending on the inside holds the inner end of the hook 2d by spring means so that when the book 24 is hooked into place in the frame members 29 of the dust arrester, as illustrated in Figure 1, the upper end of the bag A is held under the tension of the spring 28.

It is also practical to secure the upper end of 2 the bag A by the expanding inner disc 30 which co-operates with an outer disc 3| to clamp the inturned edge of the upper end of the bag A as illustrated in Figure 7, so that when the discs 30 and 3| are clamped together by the hook 24 and the nuts 33, the edge 32 is clamped tightly between the discs 30 and 3| with the upper end of the bag A fully expanded to its normal diameter.

A simple form of expander is illustrated in Figure 4 wherein a series of spring arms 35 are formed to provide a spider which extends inside of the peak end M of the bag A. Then by means of a clamping ring 36 which engages in the grooved ends of the arms 35, the upper end I4 of the bag is held in expanded position. This spider B is adapted to be held by the hook 24 while the upper or apex end 31 of the peak i8 is closed by restricting the. same around the shank of the hook 24.

Figure 5 illustrates another form of the spider B with short spring arms 35 33. In this form -the spider extends straight across the upper end M of the bag A. It will also be noted that in this form the upper peak end I8 of the bag A is formed with the loop 20 and by means of the wire supporting member 38 an eye for attaching the upper end of the" bag A is formed, while the ends 39 of the wire suspending means 38 are bent over as illustrated in Figure 5 to hold the wire member 38 conn cted to theloop at the apex of the bag.

A simple means of expanding the upper end of dust arrester A is illustrated in 'Figures 8 and 9, wherein the peak end of the bag with the loop 2 0 is secured in the same manner as illustrated in Figures 2 and 3. Then within the upper end ll of the bag I slip an expanding ring 40 which is pushed up just as far as possible toward the peak end l8 and which is held by friction and the expanding nature of the ring 40 to hold the upper end 14 of the bag A fully expanded.

My dust arrester bag A in its present form and means for securing the same to the dust arand a clamping ring rester is of primary importance because the bags A are held fully expanded virtually throughout their entire length, thereby giving greater efficiency to a dustarrester of this construction and permitting the upper ends of the dust arrester tubes to be held so that the dust collected within, the same during operating of the dust collector may more easily be shaken down into the dust collecting box ID by the reciprocating motion of the frame 29 which shakes the upper ends of the dust arrester tubes A. It will be quite apparent that the dust may more easily fall from the fully expanded wall of the' tube A which extends straight up and down in operative position, as illustrated in Figure 1.

I have found the capacity of a dust-arrester constructed in this manner to be much more efficient than where a large portion of the tube A must be flattened to hold the upper end of the bag A. Heretofore these bags have been held in this manner extending up in a loop-like formation and having the ends secured to two of the collars, such as i2, whereas here, each bag is separate and is fully expanded throughout its length and extends straight up from the bottom to the top.

In accordance with the patent statutes I have endeavored to represent the best embodiment of my invention and while the illustrations show the forms set forth, variations should be considered as within the scope of the following claims.

I claim:

1. A dust arrester bag including a dust receptacle, means for securing said bag to said dust receptacle, a hoop for holding said bag expanded to its full diameter adjacent the top of the bag, means for clamping the bag end together, and a hook on said clamping means adapted to be laterally reciprocated.

2. A dust arrester bag including, a tubular body, a reinforcing ring within said body adjacent one end of said tube, a closing fold in said tube adjacent said one end, a loop formed by the folded end of said bag, and supporting means extending through said loop, and bends in said supporting means at either end of said loop to restrict the length of the loop to the diameter of the tube.

3. A dust arrester bag including, a tubular body, means for holding said body extended to its full diameter adjacent one end of said body, a flattened end adjacent said holding means, a loop in said flattened end, a supporting means extending .through said loop, "and means on said supporting means for restricting the length of said loop to within the diameter of the tubular body. v 4. A dust arrester bag including, a single flexible tubular body, a hoop adjacent one end for holding said body expanded to its full diameter, a sealed end on said body including a transverse loop formed by the end of the bag, supporting means extending through said transverse loop, and suspending means extending transversely through said loop and supporting means.

5. A dust arrester bag including, a tubular body, a reinforcing ring in said bodyadjacent one end thereof, a flattened end on said bag adjacent said ring, a loop formed in said one end, supporting means extending through said loop, and suspending means for said supporting means on said supporting means preventing movement of said loop along said supporting means.

RICHARD RUEMELIN. 

